diff --git a/README.md b/README.md
index 074e05b..cf253b6 100644
--- a/README.md
+++ b/README.md
@@ -23,3 +23,10 @@ Linux
    * `cd build`
    * `cmake ..`
    * `make`
+
+Want to contribute to SOEM or SOES?
+-----------------------------------
+
+If you want to contribute to SOEM or SOES you will need to sign a Contributor
+License Agreement and send it to us either by e-mail or by physical mail. More
+information is available in the [PDF](http://openethercatsociety.github.io/cla/cla_soem_soes.pdf).